257520648

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{331}}^1\times {\mathrm{421}}^1$

素因数の和:779

約数の個数: 128

約数和(自身を含む): 806999040

約数和(自身を除く): 549478392

約数列:

[1, 2, 3, 4, 6, 7, 8, 11, 12, 14, 21, 22, 24, 28, 33, 42, 44, 56, 66, 77, 84, 88, 132, 154, 168, 231, 264, 308, 331, 421, 462, 616, 662, 842, 924, 993, 1263, 1324, 1684, 1848, 1986, 2317, 2526, 2648, 2947, 3368, 3641, 3972, 4631, 4634, 5052, 5894, 6951, 7282, 7944, 8841, 9262, 9268, 10104, 10923, 11788, 13893, 13902, 14564, 17682, 18524, 18536, 21846, 23576, 25487, 27786, 27804, 29128, 32417, 35364, 37048, 43692, 50974, 55572, 55608, 64834, 70728, 76461, 87384, 97251, 101948, 111144, 129668, 139351, 152922, 194502, 203896, 259336, 278702, 305844, 389004, 418053, 557404, 611688, 778008, 836106, 975457, 1114808, 1532861, 1672212, 1950914, 2926371, 3065722, 3344424, 3901828, 4598583, 5852742, 6131444, 7803656, 9197166, 10730027, 11705484, 12262888, 18394332, 21460054, 23410968, 32190081, 36788664, 42920108, 64380162, 85840216, 128760324, 257520648]

約数ペア:

[(1, 257520648), (2, 128760324), (3, 85840216), (4, 64380162), (6, 42920108), (7, 36788664), (8, 32190081), (11, 23410968), (12, 21460054), (14, 18394332), (21, 12262888), (22, 11705484), (24, 10730027), (28, 9197166), (33, 7803656), (42, 6131444), (44, 5852742), (56, 4598583), (66, 3901828), (77, 3344424), (84, 3065722), (88, 2926371), (132, 1950914), (154, 1672212), (168, 1532861), (231, 1114808), (264, 975457), (308, 836106), (331, 778008), (421, 611688), (462, 557404), (616, 418053), (662, 389004), (842, 305844), (924, 278702), (993, 259336), (1263, 203896), (1324, 194502), (1684, 152922), (1848, 139351), (1986, 129668), (2317, 111144), (2526, 101948), (2648, 97251), (2947, 87384), (3368, 76461), (3641, 70728), (3972, 64834), (4631, 55608), (4634, 55572), (5052, 50974), (5894, 43692), (6951, 37048), (7282, 35364), (7944, 32417), (8841, 29128), (9262, 27804), (9268, 27786), (10104, 25487), (10923, 23576), (11788, 21846), (13893, 18536), (13902, 18524), (14564, 17682)]